Apparatus for and method of controlling backlight of display panel in camera system

An apparatus for controlling a backlight of a display panel of a camera system according to the invention includes a sub-pixel extracting unit (191), an ambient light luminance calculating unit (192), and a backlight controller (193). The sub-pixel extracting unit extracts sub-pixel luminance values...

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Bibliographic Details
Main Authors LEE, YUN-TAE, HAN, BING, YIM, JOON-SEO, GALLAGHER, PAUL
Format Patent
LanguageEnglish
French
German
Published 26.01.2011
Subjects
ADVERTISING
ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION
CRYPTOGRAPHY
DISPLAY
EDUCATION
PHYSICS
SEALS
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Summary:An apparatus for controlling a backlight of a display panel of a camera system according to the invention includes a sub-pixel extracting unit (191), an ambient light luminance calculating unit (192), and a backlight controller (193). The sub-pixel extracting unit extracts sub-pixel luminance values from image data, where the image data is indicative of a current image frame defined by a plurality of pixels, and where each of the pixels includes a plurality of sub-pixels. The ambient light luminance calculating unit calculates an ambient light luminance value of the current image frame from the sub-pixel luminance values extracted by the sub-pixel extracting unit. The backlight controller generates a backlight control signal based on a comparison between the calculated ambient light luminance value of the current image frame and an ambient light luminance value of a previous image frame.
Bibliography:Application Number: EP20100168145